typedef struct Student

{

char term[10]; //學期

char num[12]; //儲存學號

char name[20]; //儲存姓名

char cgrade[10]; //儲存C語言成績

char mgrade[10]; //儲存數學成績

char egrade[10]; //儲存英語成績

int sum; //總分

float average;//平均分

struct Student *next;

}Student;

Student *head; //結構體陣列變數

這是最開始定義的結構體；

void main()

{

int n=0;

Student *p,top;

head=? p=head;

p->next=NULL;

for(;;)

{

switch(menu_select())

{

case 1:

printf("\t\t 輸入記錄\n");

n=Input(p,n);

break;

case 2:

printf("\t\t 顯示記錄\n");

Disp(p,n);

break;

case 3:

printf("\t\t 按姓名、學號及學期查詢學生資訊\n");

Qur_info(p,n);

printf("\t\t");

system("pause");

break;

case 4:

printf("\t\t 按姓名、學號及學期修改學生資訊\n");

Modify_info(p,n);

printf("\t\t");

system("pause");

break;

case 5:

printf("\t\t 插入一條學生資訊\n");

n=Insert(p,n);

Disp(p,n);

printf("\t\t");

break;

case 6:

n=Del_info(p,n);

printf("\t\t");

system("pause");

break;

case 7:

printf("\t\t 按單科降序(選擇)排序\n");

Sort_sub(p,n);

printf("\t\t 排序成功!\n");

Disp(p,n);

printf("\t\t");

break;

case 8:

break;

case 9:

break;

case 10:

printf("\t\t 迴圈寫入資料\n");

Save(p,n);

printf("\t\t");

system("pause");

break;

case 11:

printf("\t\t 從檔案中讀入資料\n");

n=Read(p);

printf("\t\t");

system("pause");

break;

case 0:

printf("\t\t");

system("pause");

exit(0);

}

}